probability - How to calculate the expectation of $XY
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The expectation of an expectation - Mathematics Stack Exchange
2020年10月21日 · This may seem trivial but just to confirm, as the expected value is a constant, this implies that the expectation of an expectation is just itself. It would be useful to know if this …
statistics - What is the expectation of $ X^2$ where $ X$ is ...
expectation & variance of square of non-standard normal distribution. 2. Normally distributed rain drops ...
probability - Expectation on 1/X - Mathematics Stack Exchange
Expectation of a random variable uniformly distributed according to another random variable. 4. ...
When can we interchange the derivative with an expectation?
Expectation of gradient in stochastic gradient descent algorithm. 3. What is the relationship between the ...
Difference between logarithm of an expectation value and …
To add on Didier's answer, it is instructive to note that the inequality ${\rm E}(\ln X) \le \ln {\rm E}(X)$ can be seen as a consequence of the AM-GM inequality combined with the strong law …
Expectation in terms of CDF - Mathematics Stack Exchange
2020年3月22日 · Expectation from CDF question. 1. Proving the formula of Expectation in terms of CDF for a positive Random ...
Proof: Product of Expectation of two independent random variables!
2015年10月7日 · Consider two independent Random variables A, and B, now I know that, E[A+B] = E[A] + E[B], E[AB] = E[A] * E[B].
probability - Infinite expected value of a random variable ...
2012年11月17日 · Part of it might be because of the word "expectation." In common usage, when we expect something to happen, we think it's more likely to happen than not. But in probability, …
Interchange of expected value and summation
2017年8月26日 · The expectation operator is linear. This means that you can change the order of taking expectations and taking sums. In both of the formulas that you state, this is exactly what …